#include<stdio.h>
#include<reg52.h>
#include<intrins.h>


#define Byte unsigned char

void main()
{
  long int i=0x80000000;
  Byte temp=0xFE;
  if(i>0)
  {
    while(1)
    {
      P0=temp;
      temp=_crol_(temp,1);
    }
  }
  if(i<0)
  {
    P0=0x2;
    while(1);
  }
  P0=0X3;
  while(1);
}

void T0INTERRUP() interrupt 1
{
  
}